Hydrothermal synthesis, crystal structures and properties of new Fe, Co, Ni, and Zn complexes with 6-quinolinecarboxylate: Interplay of coordinative and noncovalent interactions |
| |
Authors: | Miao Du Rui-Qin Zhong Qiang Xu |
| |
Institution: | a National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan b Graduate School of Engineering, Kobe University, Nada Ku, Kobe, Hyogo 657-8501, Japan |
| |
Abstract: | Reactions of FeII, CoII, NiII, and ZnII salts with 6-quinolinecarboxylic acid (HL) under the hydrothermal conditions afford three monomeric complexes M(L)2(H2O)4] (M = FeII for 1, CoII for 2, and NiII for 3) and a 1-D polymeric species {Zn(L)2(H2O)] · H2O}n (4). The crystal structures of the ligand HL and these four complexes have been determined by using the X-ray single-crystal diffraction technique. The results suggest that complexes 1-3 are isostructural, displaying novel 3-D pillar-layered networks through multiple intermolecular hydrogen bonds, whereas in coordination polymer 4, the 1-D comb-like coordination chains are extended to generate a hydrogen-bonded layer, which is further reinforced via aromatic stacking interactions. Solid-state properties such as thermal stability and fluorescence emission of the polymeric ZnII complex 4 have also been investigated. |
| |
Keywords: | Crystal structure Metallosupramolecular assembly 6-Quinolinecarboxylate Hydrogen bonding Aromatic stacking |
本文献已被 ScienceDirect 等数据库收录! |
|